Macroporous poly(vinylidene fluoride) membrane as a separator for lithium-ion batteries with high charge rate capacity

被引：76
|
作者：
Djian, D.
Alloin, F. [1 ]
Martinet, S.
Lignier, H.
机构：
[1] CNRS INPG UJF, LEPMI, UMR 5631, F-38402 St Martin Dheres, France
来源：
JOURNAL OF POWER SOURCES | 2009年 / 187卷 / 02期
关键词：
Li4Ti5O12; PVdF; Macroporous membrane; Lithium-ion battery; High charge rate; PHASE-SEPARATION; INSERTION ELECTRODES; GEL; OPTIMIZATION; DIFFUSION; INVERSION; KINETICS; BEHAVIOR; SOLVENT; CELLS;
D O I：
10.1016/j.jpowsour.2008.11.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The performance of PVdF macroporous separators used in lithium battery at high charge rates was evaluated using Li4Ti5O12 and LiMn2O4 as negative and positive electrodes respectively. The effects of the non-solvent used, the PVdF concentration in the good solvent and the thickness of the swelled membrane on membrane porosity and on the conductivity of the separator + liquid electrolyte were evaluated. The conductivity decrease, induced by the porous separator introduction and separator thickness influence notably battery performance for high charge rate. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：575 / 580
页数：6
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